Gas-producer.



J. H. HIRT.

GAS PRODUOER.

APPLICATION rum) run, 1910.

Patented June 17, 1913.

2 SHEETS-SHBET 1.

A'T'TEIRNELY J. H. HIRT.

GAS PRODUCER.

APPLI'UATION FILED FEB.14, 1910;

-Patented June 17, 1913.

2 SHBETikB HI-JBT 2.

INVENTIJR WITN E5 555 JULES H. HIRT, OF ELPASO, TEXAS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO ALLIS- GHALMERS COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF NEW JERSEY.

GAS-PRODUCER.

Specification of Letters Patent. Patented J 11116 17, 19 13.

Application filed February 14, 1910. Serial No. 543,725.

To all whom it may concern:

Be it known that 1, Jonas H. Hmr, a

citizen of the United States,'residing at El.

bustion of a continuous stream of gas-forming combustible material mixed with air and the subsequent combination of gases formed by l the decomposition of steam or other moisture and recomposition of the resulting gases with the gases evolved by the said combustion.

Anothe" object of the invention is to so construct the producer that the producer gas made therein will be high in percentage of carbon monoxid and methane or marsh gas, and low in percentage of carbon dioxid.

The accompanying drawing illustrates two embodiments of the invention and from a study ofthe same as described in the specification, a clear conception of the invention may be had.

In the drawing,Figure 1 is a central vertical section of one form of gas producer; Fig. 2 is a section of the producer shown in Fig; 1 taken on line 2-2 of said figure; Fig. 3-is a central vertical sect1on 0f a modified form of gas producer; and Fig. 4 1s a transverse section of the producer of Fig. 3 taken on the line 4-4 of that figure.

Referring to the producer shown in Figs. 1 and 2 of the drawing, the outer shell 1 is preferably circular and is so mounted as to open up at the bottom into a water seal 10. A chamber 3 is formed in the lower part of the shell 1 and opens at the bottom into the water seal 10 and near the topunto the off-take pipe 4. The chamber 3 1s of reduced diameter at the top and there communicates with the lower end of hollow column 2 which extends upwardly within the shell 1 to a point near the top of the hollow interior portion of the shell 1. Th s hollow interior portion of the shell 1 is formed into two chambers 6, 5, by an annular ledge 71 projecting inwardly from the shell 1. The'jchambers 6,5, are annular 1n formby reason of the location of the hollow columns 2 within the shell 1. An annular communicating passage 7 is.for1ned between the ledge 71 and the outside of colum'n 2 and constitutes a centrally disposed passage through which said column extends. A tangentially disposed inlet 11 for gas-forming combustible material mixed with air is formed in the shell 1 near, the bottom of chamber 5-. Other tangentially disposed valve controlled inlets 1-2 are passed through the shell 1 near the top of chamber 5.

Radial slag, ports 9 piece thelower end of column 2 from the bottom of chamber 5. Poke holes 91 pierce the shell 1 so as to register with the slag ports 9. These poke holes 91 will normally be closed by any convenient means not shown. The floor 8 of chamber 5 is slightly inclined with its lowest parts adjacent slag ports 9. Referring to the producer shown in Figs. 3 and 4 of the drawing, the. shell 110 is closed at the bottom instead of opening into a water seal, and the lower chamber therein is omitted. The column 21 is in this case solid and extends centrally up from the bottom of the shell 110. -The shell 110 is divided interiorly into two chambers 31, 171, by an annular ledge 711 projecting inwardly from the shell 110. A column 21 extends upwardly to a point adjacent central open-- ing 61 in the annular ledge 711. The upper chamber 171 opens into off-take pipe 81 at the top., A tangentially disposed valved inlet/11 pierces shell 110 near the bottom of chamber 31. Other tangentially disposed inlets 51 pierce the shell 110 near the top of chamber 31. A slag port 91 through shell .plied until a high temperature is attained in the said chamber. T e volume of air ad- .mitted is then decreased in such degree that carbon dioxid ceases to be produced and the resultant gas is carbon monoxid at the temperature of incandescence. The highest temperature is attained in the u per part of the combustion chamber 5 and t e gases and material swirl about column 2 within said chamber, and the resultant gas'or gases pass through annular passage 7, and swirling about-column 2 in chamber 6, thence pass downwardly throu h column 2, chamber 3,

1 and out through -take pipe 4 toany point doubtedly due to the reduction of the temperature by its introduction. This is proven by the results of analyses disclosing that the gas produced contains a higher percentage of carbon monoxid' and methane or marsh gas, and a smaller percentage of carbon dioxid than has heretofore been possible to obtain in a gas producer. The reduction of temperature of course serves to preserve the walls of the furnace from destruction by the high temperatures attained. The central location of the annular passage 7 as compared with the major portion of the combustion chamber 5, together with the swirling of the combustible material and gases in the combustion chamber 5, prevent the p'assa e of solid materialsfrom the combustion 0 amber. This feature as disclosed herein is claimed in application 465,424, filed Nov. 30, 1908, and the corresponding process in application Serial No. 543,726, filed Feb. 14, 1910. Any excess of such solid material, and also the fused impurities and ash, pass through slagports 9 and drop in melted condition into the water in Water seal 10. Should there be any clogging of the slag ports 9, this maybe remedied by the insertion of a poker through these ports by introducing same through poke holes 91 after opening the latter.

Referring to the producer shown in Figs. 3 and 4 of the drawing, finely divided gasforming combustible material and air are introduced through inlet 41 producing a swirl thereof in chamber 31 about central column 21, are ignited in any convenient way, and complete combustion to carbon dioxid gas takes place and heats the interior of the chamber 31 to a high temperature. At this time the volume of air is decreased insuch degree that carbon dioxid ceases to be produced and the resulting gas is carbon monoxid in incandescent state. This passes through opening 61 to chamber 171 and thence through off-take. pipe 81 to any point for storage or use. Into the upper part of chamber-31 steam or other form of moisture or any other suitable endothermic agent is admitted through inlets 51 serving the same functions and producing similar results to those attained by the admission of steam through inlets 12 in the producer shown in Figs. 1 and 2. Excess solid combustible material, fused impurities and ash are removed through slag port 91 to the exterior of the producer. Poke hole 91-1 may be used for the introduction of a poker to break up slag and clear slag port 91.

Actual test has demonstrated that gas may be generated within fifteen minutes after starting the apparatus, and that two tons of finely divided material can be gasified in one hour.

It should be understood that it is not desired to be limited to the exact details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

It is claimed and desired to secure by Letters Patent,-

The combination in a gas producer, of a central column within said producer forms ing an annular vertically disposed gas generating chamber free of obstruction by heatretaining substance, an obliquely dlrected inlet to said chamber, an annular ledge projecting from the wall of said chamber, sa1d ledge leaving a centrally dlsposed outlet assage from said chamber and sa1d column eing in line with and obstructing sa1d passage, a moisture inlet to sa1d chamber at a point adjacent said obstructed passage, a second chamber with which said obstructed passage communicates and an outlet passage from said second chamber.

In testimony whereof, I afiix my signature in the presence of two witnesses.

JULES H. HIRT. Witnesses: I

LEON E. HIRT, C. GADENA. 

